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EP0039482A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Perylene-3,4,9,10-tetracarboxylic acid monoanhydride-monoimides, process for their preparation and their use

Assignee: Hoechst AG
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Filing: 1981-04-30
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Granted: —
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Expires: 2001-04-30
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Abstract

Abstract Translated from German Verbindungen der Formel in der R Wasserstoff, Hydroxy, Amino oder gegebenenfalls substituiertes Alkyl, X Chlor oder Brom und n Null bis 4 bedeuten, werden aus den entsprechenden Perylen-3,4,9,10-tetracarbonsäure-monoanhydrid-mono-alkalisal- zen durch Umsetzung mit Verbindungen der Formel R-NH2, in der R die obige Bedeutung hat, bei 0-130°C erhalten. Die Verbindungen sind Farbmittel bzw. Ausgangsmaterialien für Farbmittel. Compounds of the formula in which R is hydrogen, hydroxyl, amino or optionally substituted alkyl, X is chlorine or bromine and n is zero to 4, are converted from the corresponding perylene-3,4,9,10-tetracarboxylic acid monoanhydride mono-alkali metal salts by reaction with Compounds of the formula R-NH2, in which R has the meaning given above, at 0-130 ° C. The compounds are colorants or starting materials for colorants.

Inventors

  • 👤 Ernst Dr. Spietschka
  • 👤 Helmut Dr. Tröster

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-02 18:05
CPC Classifications
C; C07; C07D; C07D491/00; C07D491/02; C07D491/06; C09; C09B; C09B5/00; C09B5/62

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